PERFORMANCE OF THE ION-SOURCE DECRIS-14-2

The Dubna electron cyclotron resonance ion source DECRIS-14-2 was put into regular operation at the U-400M cyclotron in the beginning of 199 5. During the past two years the source has produced a wide range of i on beams for physics experiments as well as for the testing of the bea m transport lines and the cyclotron itself. Ions of gases, such as He, N, O, Ne, and Ar were successfully delivered and accelerated in the c yclotron. The ion source has shown good performance especially in the case of middle charge state ions (e.g., 600 e mu A of Ar8+) as well as high operational reliability. Significant progress in metal ion produ ction has been achieved by introducing a new microoven for the evapora tion of metal samples. This microoven in combination with an additiona l tantalum sheet installed inside the discharge chamber has made it po ssible to obtain Li2+ ion beams in excess of 200 e mu A. (C) 1998 Amer ican Institute of Physics.